Just in time for the spring semester, Miller Hall is ready for move-in day all over again.

The cleanup cost the university millions, but officials assured parents and students they can rest easy knowing the buildings are safe.

In October, 270 freshmen were forced to move out of Miller Hall when potentially dangerous levels of mold spores were found throughout the building.

Some local students moved home and others were put up in open dorm and hotel rooms.

“We weren’t sure what the source, but we knew we didn't want students to live in it and we wouldn't be able to do a true identification and repair of the source with students living here,” said Shannon Staten, the UofL director of housing.

Crews have worked around the clock since evacuation day to cleanup.

The main source of the problem was determined to be the heating and air systems which have been there since the dorm was built in 1965.

Every one of those units was replaced, as was any moveable furniture.

“Rather than clean the furniture in Miller, we made a decision to replace it and that cost us $300,000, $400,000 and we decided that was money well spent,” Staten said.

Miller wasn't the only building with problems.

Visible mold in several rooms at neighboring residence halls had to be cleaned and air units replaced as well, but those students weren't required to move out.

Long-term work continues in halls like Threlkeld, Wellness and West, with $3 million committed to those projects.

As Miller Hall residents prepare for their move back in, the university wants them to know the rooms are clean, fresh and safe.

“We retested everything and came up with zero mold growth in the building,” Staten said.

Move in days are Saturday and Sunday and classes start back up on Monday.

Some students are staying put in the rooms they were moved to, others were able to leave their belongings in their Miller Hall rooms over winter break.

The director of housing said coming back to Miller Hall should be worry-free for families and students.